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Scientific American, Vol. 30, No. 19 (May 1874) (1874)

leaf 4

An illustration from Scientific American, Vol. 30, No. 19 (May 1874), 1874, leaf 4
possible of the desk in my engine room. The main belt of the en- the drivers on the countershaft being 24 inches in diameter. df In"', gine is 30 inches in width, and about 130 feef. in length, and The work done by the spindles alternated regularly about 60 runs from south to north, at an angle of… … The idea occurred to me that the electricity so developed as the same effect would be produced by a difference in the might be made uss of for mechanical or other purposes; and length of belt—but for this latter fact the following interest- having seen an engraving of what is called an electrical…

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